Windsor Energy - Bio-Gas Systems | Flares
Utilising waste gas in process heating or power generation (gas engine) is a preferred method of disposal, but sometimes it is impractical due to distance from a suitable site. Flaring gas is the best alternative in this situation. A temporary flare may also be required for co-generation standby systems and during landfill construction.
Windsor can offer solutions for venting gas from most sources from pre-aerated flame shrouded designs to totally enclosed flame designs.
Windsor Energy - Energy Recovery
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Windsor has considerable expertise, experience and reference installations for energy and heat recovery technology in the pulp and paper, dairy, timber processing and food sectors.
We can carry out a feasibility study on your heat recovery proposal and are able to design and manage your complete project.
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Windsor Energy - Gasifiers
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Windsor has negotiated the rights from Agder Biocom, a Norwegian bio energy supplier, to represent their gasifier technology throughout Australia and New Zealand.
Gasification involves combusting fuel (biomass in this case) in a low oxygen environment. The low velocity fire releases hydrogen and carbon monoxide from the fuel creating a Syngas, which is then burnt for heat transfer as shown below. Gasifiers have been around for some time so the concept isn't new.
Windsor are offering this technology for projects where small gasifiers, in the 0.5 to 5MWth, range are suitable.
One of the advantages with a gasifier is that it is clean burning and has a very low particulate emission. With a clean emission, and trials so far have indicated a 12-14mg/Nm3 particulate emission reading, the addition of a wet scrubber or a filtration unit can be avoided. Regional authorities are tightening up on their air quality emissions allowances as part of any consenting applications, so we believe the timing is right for a move to gasification.
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With the New Zealand government support, via their Energy Efficiency and Conservation Authority (EECA) business unit, a 1MW gasifier will be installed at Rotorua's Waiariki Institute in mid 2011, where it will provide heat to a pair of Windsor timber drying kilns. This facility will allow further research and development to be undertaken as well as experimentation with varying biomass fuels. In parallel, Waiariki are particularly interested in developing a bioenergy training course to teach current and future biomass heat plant operators.
We intend to develop a facility where various biomass fuels can be blended and experimented with to determine the combustion efficiency. Windsor aims to manufacture the gasifiers locally once initial trials have been completed as part of their distribution agreement. Investigations are also planned on the opportunities for inter-connected power generation and converting the Syngas into added value products such as ethanol.
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Windsor Energy - Alternative Power Generation
Windsor is actively investigating alternative power generation utilising waste energy. Examples for such applications include using high temperature kiln exhausts gases to generate power via an Organic Rankin Cycle (ORC) system. Steam engines and other methods for generating power are being reviewed and trialled as Windsor looks to integrate these technologies into our projects.
- Windsor Energy - Enviro-Energy (STERM Process)
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As a manufacturing partner to Enviro-Energy Limited, Windsor is proud to be associated with this innovative new technology.
The STERM is a thermal drying process that produces in an economical and environmentally friendly way a high-grade sterile fuel from bio-solids resulting from the wastewater treatment process. The fuel produced by the system provides the energy to run the STERM leaving only an inert sand/ash as the end product.
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The STERM takes dewatered bio-solids through a proprietary drying process, converting them into sterile fuel source. The moisture-laden air is sterilized and deodorized and the fuel created is recycled back through a special combustion process to provide energy for the system. The inert sand/ash end product of the combustion process has offsite uses as an aggregate in concrete or plaster, or as road fill.
Although the STERM is capable of processing primary, secondary and digested sludge, it is primary undigested sludge that provides the highest specific energy, leaving a fuel surplus available for off-site uses, e.g. energy co-generation.
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In addition to creating its own energy, the STERM has only three principle outputs from the process:
 Surplus sterile fuel source (from processing primary undigested bio-solids).
Exhaust gases (filtered and deodorized).
Inert sand/ash (7% of wet volume of bio-solids introduced to the process).
Proof of concept was achieved in November 2006. Following proof of concept, the plant has been converted to commercial standard to allow the finalisation of an Enviro Energy-Hamilton City Council contract to eliminate up to 25% of the city digested sludge each day.
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Enviro Energy is now able to manufacture the STERM 2000 which has a processing capacity of up to 100 wet tons per day. The STERM can be installed in parallel for processing volumes greater than 100 tons and is suitable for use in either new treatment facilities or can be retro-fitted to existing facilities.
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